|Model|Origin|Type|Version|In Service|Notes|
|---|---|---|---|---|---|
|AM General HMMWV|United States|Light Utility Vehicle|M998A1  M1038A1  M1025A1  M1025P1  M1114|-|Divided into several variants and series, including armored variants. Uparmored variants (M1025P1 and M1114) are assigned with the Mechanized Infantry Division and Special Operations Command.|
|Maxi-Ambulance|United States|Light Utility Vehicle|M997A2|19|23 delivered to AFP on November 2011, PMC received 4 units.|
|M939 truck|United States|Heavy Utility Vehicle|M923  M929  M931  M934  M936|>20  -  -  -  -|20 M923 delivered in 2010, several more of different variants delivered in 2013.|
|M35 Truck|United States|Heavy Utility Vehicle|M35A1  M35A2  M35A3|-|Divided into several variants and series, in service with the PA since the early 1960s. 90 more units delivered in June 2011, more delivered in 2013.|
|Mitsubishi Fuso Fighter|Japan|Light Utility Vehicle|FK Troop Carrier|-|Locally sourced.|
|CMC Cruiser|Philippines|1/4-ton Light Utility Vehicle|Standard|-|Limited production run, introduced in the mid-1990s.|
|Delta Mini Cruiser|Philippines|1/4-ton Light Utility Vehicle|M1777|-|Divided into several variants and series, including short and stretched utility and armed variants, and modified variants for specialized units.|
|M151|United States|1/4-ton Light Utility Vehicle|M151|-|In Service|
|Mitsubishi L200|Japan|Light Utility Vehicle|L200|-|Used by Military Police|
|KM-50 Series|Republic of Korea|Heavy Utility Vehicle|KM-500  KM-503|6  12|KM-500 as 155mm Artillery prime mover, KM-503 tractor head for flat-bed trailers. 1st batch of 6 KM-500 delivered 2012. KM-503 delivered 2013.|
|KM-25 Series|Republic of Korea|Medium Utility Vehicle|KM-250|<250|In Service. Some units received by other armed services.|
|KM-45 Series|Republic of Korea|Light Utility Vehicle|KM-450|727|651 purchased by AFP on 2007 (590 for army) and 137 on December 2010|
|KM-45 Series|Republic of Korea|Field Ambulance|KM-451|48|60 purchased by AFP in 2012, 48 went to the Army.|

Question: how many models were made in the replublic of korea?
Answer: 4